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Smart Antenna - Performance Analysis - RF Cafe Forums

The original RF Cafe Forums were shut down in late 2012 due to maintenance issues. Original posts:

Amateur Radio | Antennas | Circuits & Components | Systems | Test & Measurement


smart antenna
 Post subject: Smart Antenna - Performance Analysis
Posted: Fri Nov 05, 2004 7:59 am 
I am a student. I have to simulate an adaptive smart antenna system, that is an adaptive antenna array, whose outputs are adaptively combined through a set of complex weights (signal amplitude and phase adjustments) to form a single output with beam steering interference mitigation capabilities. I have to show how the performance of an adaptive system is related to the DOA spread of multipath signals and the impact of the number of multipath on the performance of an adaptive antenna system. The simulated system has to be an optimum combining array with 8 omni-directional elements. I have to assume that there are 5 gaussian multipath signals. I have to show on the X axis the SNR at each antenna element and on the Y axis the bit error rate (BER) of coherent demodulation of BPSK at the array output. The variables that I have to inspected in the simulation are: number of elements, number of multipath, DOA (direction of arrival) spread, beamwidth of the directional antenna element and the number of element that will be chosen for beamforming process. I have to simulate two kinds of communication system: TDMA and CDMA. Bynary phase shift keying (BPSK) modulation is used in all simulation.I suppose flat rayleigh fading. There is an adaptive antenna array performance simulation software that may help me?


 
  
 
Guest
 Post subject: Re: Smart Antenna - Performance Analysis
Posted: Wed Mar 16, 2005 1:14 am 
smart antenna wrote:
I am a student. I have to simulate an adaptive smart antenna system, that is an adaptive antenna array, whose outputs are adaptively combined through a set of complex weights (signal amplitude and phase adjustments) to form a single output with beam steering interference mitigation capabilities. I have to show how the performance of an adaptive system is related to the DOA spread of multipath signals and the impact of the number of multipath on the performance of an adaptive antenna system. The simulated system has to be an optimum combining array with 8 omni-directional elements. I have to assume that there are 5 gaussian multipath signals. I have to show on the X axis the SNR at each antenna element and on the Y axis the bit error rate (BER) of coherent demodulation of BPSK at the array output. The variables that I have to inspected in the simulation are: number of elements, number of multipath, DOA (direction of arrival) spread, beamwidth of the directional antenna element and the number of element that will be chosen for beamforming process. I have to simulate two kinds of communication system: TDMA and CDMA. Bynary phase shift keying (BPSK) modulation is used in all simulation.I suppose flat rayleigh fading. There is an adaptive antenna array performance simulation software that may help me?




send me the algorithm and matlab code you are implementing to this id "prashanthvreddy@rediff.com"


 
  
 
Guest
 Post subject: Re: Smart Antenna - Performance Analysis
Posted: Wed Mar 16, 2005 1:18 am 
smart antenna wrote:
I am a student. I have to simulate an adaptive smart antenna system, that is an adaptive antenna array, whose outputs are adaptively combined through a set of complex weights (signal amplitude and phase adjustments) to form a single output with beam steering interference mitigation capabilities. I have to show how the performance of an adaptive system is related to the DOA spread of multipath signals and the impact of the number of multipath on the performance of an adaptive antenna system. The simulated system has to be an optimum combining array with 8 omni-directional elements. I have to assume that there are 5 gaussian multipath signals. I have to show on the X axis the SNR at each antenna element and on the Y axis the bit error rate (BER) of coherent demodulation of BPSK at the array output. The variables that I have to inspected in the simulation are: number of elements, number of multipath, DOA (direction of arrival) spread, beamwidth of the directional antenna element and the number of element that will be chosen for beamforming process. I have to simulate two kinds of communication system: TDMA and CDMA. Bynary phase shift keying (BPSK) modulation is used in all simulation.I suppose flat rayleigh fading. There is an adaptive antenna array performance simulation software that may help me?




send me the algorithm and matlab code you are implementing to this id "prashanthvreddy@rediff.com" .please send the algorithm in detail


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